sewer rats
made by d4rkdemon and i2 ninja 4u

story
you are a member of the pest control squad and your objective is to clear out the sewers which are over run by infected rats

all the tubes are zombie spawns and how are humans supposed to get u to one anyway?

the humans spawn with shotty and sniper

and they have to work together to suvive the 'rats'
and the 'rats' have to team up on humans to kill them since they have 50% damage

human traits
110% damage
shotty and snipe
infin ammo

zombie traits
50% damage
energy sword
infin ammo

last man traits
instant kill
200% speed

pics

inside overview (no roof)
http://haloscreenshots.net/gallery/AA0D1D9EDF34BB6D4BE7A5E5E35BCDDB/"][/URL]
view from human spawn (no roof)
http://haloscreenshots.net/gallery/D1EAAF944DC0AFCB1E31AE9B8D0D9916/"][/URL]
view from zombie spawn (there are lots more)
http://haloscreenshots.net/gallery/85A4573779DFD54ED0BF93DF70013DDC/"][/URL]
outside overview
http://haloscreenshots.net/gallery/0517DD5EA4673BF4186B8BD4AA51E2BA/"][/URL]

well there ya go

map
Bungie.net : Halo 3 File Details
gametype
Bungie.net : Halo 3 File Details
sig pics
http://haloscreenshots.net/gallery/ADA81F31AF42F9E7ED4E4A1E74AF5A0D/"][/URL]
D4rkdemon

http://haloscreenshots.net/gallery/3D93EEAA2EA0AE704F969CD81C195F62/"][/URL]
i2 ninja 4u

Edit: there are two bugs in the map
1.a human could spawn in tubes
2 a zombie could spawn in pool

but you can just say at the start before the game start
'if you spawn in pipes you have to jump down'